Brisk Silver Racing D12S Spark Plug

D12S Brisk Racing Silver Spark Plug Brisk SKU  -  D12S Parameters: Thread Diameter 14mm Thread Reach 19mm-3/4" Hexagon 16mm-5/8" Seat Type Gasket Design Silver Racing Resistor No Projected No Heat Range  -  12 Brisk D12S Replaces:   NGK 5671A-9NGK Racing plug R7114-8 NGK Racing plug 4075 R7238-8 NGK Racing plug R7118-8 NGK Racing plug R7119-8 NGK Racing plug 4892 R7434-8 Denso Iridium IK27 Denso Iridium IK01-27 Denso Iridium IK02-27Denso Racing 5701 IK01-24   Autolite AR3933 Autolite Racing series AR3934 Champion Racing series 283 C63 Champion Racing series 688 C61   Brisk Silver Racing Spark Plugs have a smaller diameter silver core and conventional open spark hook type earth electrode give an outstanding performance in igniting high octane fuel mixture associated with alternative fuels like CNG, LPG, Propane, E85 blend, Alcohol, LNG, Race Fuels and Nitro.  Silver metal is the single best material for a spark plugs core electrode, as it can dissipate heat fast, res